MCM Electronics

BNC Video + DC Power BalunMCM Part #: 50-7746  |  MCM Custom Audio Part #: 50-7746

BNC Video + DC Power Balun 3.8 stars from 4 reviews.
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BNC Video + DC Power Balun
Use to send composite video signal and low voltage DC over Cat5 cable. This balun features very compact size, and a male BNC connector, attached to an 8" pigtail, for easy attachment directly to equipment. In addition to the BNC connection, two screw terminals are provided for direct access to two cable pairs (in parallel).

MCM offers a complete line of balun products for a variety of A/V distribution applications. Click Here for a complete listing.

Product Description

  • Ideal for remotely providing DC power surveillance cameras and small LCD monitors
  • 8" BNC pigtail provides increased flexibility in tight installations
  • Utilizes Cat5 pair 7/8 for video
  • DC power transfer parallels two pairs for reduced voltage drop
  • Pins 1/2 power (+)
  • Pins 4/5 power (–)


  • Bandwidth: 50Hz ~ 8MHz
  • Distance: 1000' (Cat5)
  • Maximum recommended distance for power: 300' (using 12VDC, 500mA)
  • Dimensions (excluding connector pigtail): 1.0" (H) x 0.85" (W) x 2.0" (L)

  • Product Reviews

    • "Great Service" by fpeters1 on 12/24/2012
      Overall: 4 out of 5

      I always enjoy shopping at MCM. The prices are great and so is the delivery time. Thanks again MCM.

    • "Seriously it's fine," by chriswilkes on 3/6/2012
      Overall: 5 out of 5

      Are you are still running analog cameras and have and issues with a bit of chroma loss then you may have an issue. If you are re-utilizing an older system in a new install this is the only way to go so you can be ready for IP if the site needs it later on. Also, 4 dB loss is only on the higher end, thus there is a bit of chroma loss, luminance is carried nearly perfectly. Get over your self and just crank up the chroma on your 20 year old tube monitor if this item is that bad. Analog video should be measured with a Vector Scope and WFM, not an oscilloscope. Have fun taking a Polaroid of your monitor to give to the cops if you think you need to run coax instead of using this balun.

    • "Excellent Reliability" by NeubaumTurk_DYCA on 5/20/2011
      Overall: 5 out of 5
      Top 10 Contributor

      Use these regularly, never had a problem, not even once. Installations vary from 50' or so, to 500', picture always looks fine. Even used a pair to carry power well over 400', with no issues whatsoever. MCM's price is great too, among the lowest anywhere. Highly recommended.

    • "High Insertion Loss" by Starfire06 on 4/5/2011
      Overall: 1 out of 5

      Even though rated for 1000' at less than 200' the resulting picture was unacceptable. When Tested on an oscilloscope I found a 60% insertion loss using 2ft of Cat5 cable and at 200ft the signal was less than 10% of the original. Most video baluns claim a 2db insertion loss per pair, these are closer to 4db per pair plus cable length. Even using an Active Balun on either side didn't help these.

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    Package Specifications & Dimensions
    Weight:0.13 lbs.
    Warranty:365 days
    Need to Return?
    Length:7.24 in.
    Width:5.24 in.
    Height:1.24 in.
    Shipping Information
    Extra Shipping Charge:No
    Drop Ship:No
    Catalog Pages

    MCM Cat 57, Page 222

    MCM Cat 56, Page 085

    PDF Reference

    Requires Adobe Acrobat Reader.

    Mfr. Info

    MCM Custom Audio Logo
    Mfr. Name:MCM Custom Audio
    Mfr. Part Number:50-7746
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